SabreDAV allows you to easily add WebDAV support to a PHP application.
SabreDAV is meant to cover the entire standard, and attempts to allow
integration using an easy to understand API.
Feature list:
* Fully WebDAV compliant
* Supports Windows XP, Windows Vista, Mac OS/X, DavFSv2, Cadaver, Netdrive.
* Supporting class 1, 2 and 3 webdav servers
* Locking support
* Custom property support
* Supports: RFC2518 and revisions from RFC4918
* Has built-in support for (basic/digest) authentication (RFC2617)
